Manuel Pereira de Godoy
Manuel Pereira de Godoy, Brazilian fisheries biologist and historian (Pirassununga, São Paulo State 22 April 1922 – Pirassununga, São Paulo State 14 October 2003) Internationally known for his studies on migration and reproduction of rheophilic fishes Authored 130 technical works about fisheries and anthropology DESCRIBED FISH SPECIES Astyanax trierythropterus 1970 Hypostomus luteus 1980 Hypostomus topavae 1969 Leporinus amae 1980 Sternachella curvioperculata 1968
Manuel Gonzalez Sponga
Manuel Angel Gonzalez Sponga, Venezuelan arachnologist (Guatire, Miranda 30 April 1929 – Caracas 01 March 2009) DESCRIBED TAXA Atractus emigdioi 1971 (Reptilia) About 225 new Myriapoda species One family, 63 genera and 353 species in Arachnida HONORS Spongaobaria Ozdikmen 2008 (Arachnida)
Manuel Gonzalez Echeverría
José Manuel Alejandro González Echeverría, Cuban physician (La Habana 24 April 1833 – La Habana 26 March 1898) From Venezuelan father and Cuban mother World famous as ophthalmoscopist and epileptologist Described pupil and retina capillaries conditions along epileptical crisis Observed the anatomical lesions that caused paroxysmal brain discharges Authored On Epilepsy. Anatomo-Pathological and clinical notes (1870) praised by medical international press
Malcolm Hutchison Giffen
Malcolm Hutchison Giffen, South African phycologist (Rosebank, Cape Town 06 July 1902 – East London, Buffalo City, Eastern Cape Province 16 September 1986) Described genus Cuneolus 1970 and 89 new species of diatoms HONORS Giffenia Round & Basson 1997 (Bacillariophyceae)
Lélio Itapuambyra Gama
Lélio Itapuambyra Gama, Brazilian mathematician, astronomer and geophysicist (Rio de Janeiro 29 August 1892 – Rio de Janeiro 21 July 1981) Introduced notion of spheroidal structure spaces. It is the same as uniform structure enunciated by Weil in 1937 Notion de proximité et espaces à structure sphéroidale. American Journal of Mathematics 67(1):42-58, 1945. Another important work Limits d’ensemble dans les espaces abstraits. Summa Brasiliensis Mathematicae 1:1945-6 Proposed a fundamental theorem Sur les fonctions d’intervalle. Anais Acad. Bras. Sciencias (1939) Simplified the classical methods of reduction per day Sobre o cálculo dos fatores de Kimura para a reducção ao dia (1925) Improved the control of instrumental deviation in the observation of latitude variations Estudo da precisão do método de Talcott (1929) Proposed that curvature correction may be formulated as a function of median zenital distance by observed star pairs On the computation of the reduction to the meridian in latitude observators. Astron. Nachrichten 5361:163-4, 1925 Developed a Talcott method for computing mean declination of a pair of stars using differential corrections of Kimura factors Member, Astronomical Time and Earth Rotation Committee, International Astronomical Union (1956-64) SOME BIBLIOGRAPHY Valores da gravidade nas regiões centro e sul do Brasil (1972) Sobre a variação diurna do campo magnético no Brasil (1972) Constante do micrômetro da luneta zenital de Heyde (1969) Campo magnético normal e sua variação secular em 545 pontos geográficos do Brasil, 1880-1960 (1966) Cyclic fluctuations in geomagnetic secular change (1915-1959) 1960 Précis de theorie du magnetometer (1957) With C.A. Barros. Comparison of the Rude Skov and Vassouras magnetic standards by means of quartz horizontal-force magnetometers (1953) Recherches théoriques et pratiques sur les variometres unifilaires (1951) Series numéricas (1947) Sobre a integral imprópria (1941) Sur l’additivité du contigent. Comptes Rendus Acad. Sci. Paris 207:29-31, 1938 Sur l’additivité de l’accumulatif. Comptes Rendus Acad. Sci. Paris 207:447-8, 1938 Contribuição a teoria dos limites. Anais Acad. Bras. Ciências (1937) Sobre as equações diferenciais do movimento dos asteróides (1934) On the computation of mean star factors for the deduction of latitude observations by Horrebow-Talcott method Astron. Nachrichten 5691:45-6, 1930 Estudo sobre as linhas geodésicas. Thesis (1929) Contribuições para o estudo da variação das latitudes (1929) Determinação da latitude (1929) Cálculo do nascer e do occaso da Lua no Rio de Janeiro (1928) Nota sobre a theoria do movimento diurno (1924)
Luis Guglialmelli
Luis C. Guglialmelli Cosentino, Argentine organic chemist (Buenos Aires 15 May 1884 – San Martín, Buenos Aires Province 14 November 1937) Son of Genoese immigrants ACHIEVEMENTS Discovered hundreds of new chemical species A new method for obtaining gold Acción de la plata colidal sobre los cloruros de oro y de platino. Nuevo método de obtención de oro coloidal. Anales Soc. Cient. Argentina, 1913. Created arseno-tungstic and molybdic reagents (Guglialmelli reagent) Arseno-tungstic-molybdic acid as a reagent for phenols. Anales Soc. Quim. Argentina 4:183-4, 1916. Un Nuevo procedimiento de valorización de los taninos por colorimetria. Actas y Trabajos, Primer Congreso Nacional Medicina, Buenos Aires, Tomo V: 211, 1916. New reaction distinguishing the sugars. Anales Soc. Quim. Argentina 4:277-82, 1916. New and delicate test for dimethylaminee-phenyldimethylisopyrazolone (pyramidone). Anales Soc. Quim. Arg. 4:180-2, 1916. Identification of naphthols, a new and sensitive test for a-naphthol. Anales Soc. Quim. Argentina 5:97-101, 1917. General method for the detection of phenols in essential oils. Anales Soc. Quim. Argentina 5:11-23, 1917. Un nuevo procedimiento de valorización de los taninos por colimetria (1919) With Carlos Guerrero Estrella. Un Nuevo procedimiento de la tintura marrón sobre la lana. Anales Asoc. Quim. Arg. 8:325, 1929.